| Bosnia-Herzegovina (1) |
|---|
| Dzumhur, Damir |
| | Czech Republic (4) |
|---|
| Berdych, Tomas | | Pavlasek, Adam | | Rosol, Lukas | | Vesely, Jiri |
| | | France (3) |
|---|
| Monfils, Gael | | Paire, Benoit | | Pouille, Lucas |
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| Germany (4) |
|---|
| Brown, Dustin | | Kohlschreiber, Philipp | | Mayer, Florian | | Struff, Jan-Lennard |
| | | Luxembourg (1) |
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| Muller, Gilles |
| | Netherlands (1) |
|---|
| Haase, Robin |
|
| | Russia (4) |
|---|
| Donskoy, Evgeny | | Khachanov, Karen | | Medvedev, Daniil | | Youzhny, Mikhail |
| | Serbia (1) |
|---|
| Troicki, Viktor |
| | Spain (4) |
|---|
| Bautista Agut, Roberto | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Verdasco, Fernando |
|
| Switzerland (2) |
|---|
| Federer, Roger | | Wawrinka, Stan |
| | | United Arab Emirates (1) |
|---|
| Alawadhi, Omar |
| | United Kingdom (2) |
|---|
| Evans, Daniel | | Murray, Andy |
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| Uzbekistan (1) |
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| Istomin, Denis |
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